19877416

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{1459}}^1$

素因数の和:1609

約数の個数: 32

約数和(自身を含む): 40471200

約数和(自身を除く): 20593784

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 131, 262, 524, 1048, 1459, 1703, 2918, 3406, 5836, 6812, 11672, 13624, 18967, 37934, 75868, 151736, 191129, 382258, 764516, 1529032, 2484677, 4969354, 9938708, 19877416]

約数ペア:

[(1, 19877416), (2, 9938708), (4, 4969354), (8, 2484677), (13, 1529032), (26, 764516), (52, 382258), (104, 191129), (131, 151736), (262, 75868), (524, 37934), (1048, 18967), (1459, 13624), (1703, 11672), (2918, 6812), (3406, 5836)]